Squirro is designed and optimized for Linux. Installations are provided for the Red Hat® and CentOS distributions, both in the cloud or on premise.

Squirro is built as a service-oriented platform. All services work as self-contained units of functionality and therefore are suited for different scenarios. Squirro can match small but also complex and large-scale requirements. All Squirro services communicate via RESTful API. The Squirro API is open and allows for 3rd party integration for all services and functionality.

Table of Contents


All non-Squirro components are open source components. 

ComponentFunctionHigh Availability
Squirro Application
(see Services for details)
  • Core Squirro Engine
  • Squirro Frontend UI
  • Squirro RESTful API
  • Squirro Documents Storage Layer
  • Search Engine
  • Squirro Configuration Metadata
Redis Cache
  • Squirro Cache for application and frontend
Squirro Python SDK
  • Python Wrapper SDK for Squirro RESTful API
Squirro Toolbox
  • Squirro File Importer
  • Squirro Bulk Importer
  • Squirro Bulk Loader
  • Squirro MySQL Connector
  • Squirro Exchange Connector
  • Squirro Known Entity Processors
Squirro YUM Repository
  • Simple Installation and Updating of Squirro components
Squirro Puppet Configuration
  • Simple and robust way of centrally configuring all Squirro related settings and configuration items


Squirro supports two different types of deployments - cloud and on-premise. Updating installations in the cloud is done by the Squirro staff, based on individual agreements with the customer. For on-premise deployments, the upgrade process is driven by the customer directly.

Please see the Release Notes section for details about individual releases or reach out to Squirro Support about scheduled upcoming release dates. 

Supported Platforms

Squirro supports the following two standardised platforms.


A separate cloud is generally set up for each customer, to isolate the different installations. Squirro generally works with Amazon Web Services for cloud deployments. But other cloud services are supported on demand.


Red Hat® and CentOS. See System Requirements for details.

  • Red Hat® Enterprise Linux®
    • License provided by customer
    • Red Hat® Enterprise Linux® support for the standard operating system components
  • CentOS Linux: 
    • No license required
    • Community based support for standard operating system components

This Administration Guide targets customers and partners who maintain their on-premise deployments of Squirro.